US1454622A - Changeable-sign device - Google Patents

Changeable-sign device Download PDF

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US1454622A
US1454622A US389089A US38908920A US1454622A US 1454622 A US1454622 A US 1454622A US 389089 A US389089 A US 389089A US 38908920 A US38908920 A US 38908920A US 1454622 A US1454622 A US 1454622A
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disk
switch
motor
web
sign
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US389089A
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Henry W Cairns
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F11/00Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G09F11/24Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies
    • G09F11/29Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies of a band other than endless
    • G09F11/295Electric control therefor

Definitions

  • This invention relates to changeable sign devices and more particularly to devices for 1 successively exhibiting signs carried by a v web mounted on suitable rollers.
  • a further object is to automatically reverse the motor by means of a suitable stepby-step mechanism upon a travel of the web in either direction suflicient tocomplete d1splay of all of the signs.
  • the means employed to efiect illumination of the sign and the provision for Variation in the speed of the rollers relative to the driving means therefor to compensate for the varying driving efl'ectpf the web upon the reel from which 1t is belng unwound.
  • Fig. 2 is a side view of the same in partial section.
  • I I Fig. 3 is a detail in horizontal cross-sec.-
  • Fig. 4c is a similar view of the lower cross member of the frame, the plane of section being indicated at 44 in Fig. 1.
  • Fig. 5 is a rear view of the device upon a somewhat larger scale than that of Fig. 1, certain parts being broken away to more clearly show portions of the operating mechanism. r
  • Fig. 6 is a detail view of a step-by-step mechanism for controlling the motor circuits, including a diagram of said circuits 55
  • Fig. 7 is another view of said mechanism 1 transverse to Fig. 6.
  • FIG. 1 is a front elevation of the inven- Fig. 1'.
  • the uprights of the frame 5 are preferably angle bar tresses (see Fig. 2) and these are rigidly connected at top and bottom by angle bars 6.
  • a pilaster effect is given to each of the uprights of the frame by pressed sheet metal members 9, which serve also to conceal electric lamps 10 and to reflect the light thereof upon the displayed sign to illuminate the same.
  • Lamps 11 are also provided above and below the sign to illuminate the same, and sheet metal members 12 serve to conceal said lamps to re-' fleet the light thereof upon the sign and to add to the ornamental appearance of the frame.
  • rollers 1 and 2 are mounted loosely upon shafts 13 journaled'in the frame and are concealed behind the memberslQ.
  • a driving connection from each of said shafts to the corresponding roller is established by a coiled spring 141 recessed within one end portion of the roller, the connections of said springs to the rollers and shafts being reverse so that the tension on one'of said springs is being relieved while that of the other is increased, when both shafts are similarly driven.
  • Amotor 15 drives the lower shaft 13 through a speed reduction gearing 16, and the upper shaft 13 is driven from the lower through an endless chain 17, the
  • a third disk 23 Adjacent the disk 21 is mounted a third disk 23 which has imparted thereto from the disk 21 a still more gradual stepby-step rotation. This" is effected by providing upon a side face of said disk 23 a plurality er equally spaced ins 24 equal in number to the signs on the web 3, which pins are successively engageable by a r'adially projecting pin 25 upon the disk 21. Asshown, there are ten pins 22 upon the dis1' 21, and seven ins 24 upon the disk 23. Thiis' ten revolutions of the initial driving disk 19 are required to eliect a single turn of the disk 21, and seven turns of the latter are necessary to accomplish a revolution of the disk 23, seven being also the number of signs carried by the web 3.
  • the disk 21 forms acontrol means for a switch 26 in the meter circuit 27 energized from the leads 27 and 27, and the disk 23 is adapted to control a reversing switch in series with the switch 26, and comprising pivotal switch arm 23 and a pair of contacts 29 and 30, a forward or reverse drive of the motor being effected according as said arm engages the contact 29 or 30.
  • a radial pin 31 on the disk 21 is engageable with the switch 26 to open the same as said pin reaches its uppermost position, and a pair or radial pins 32 aujaeently mounted upon the dial 23 are, one or the other, engageable with the switch arm 28, according to the direction in which said disk is being driven, to throw said switch arm from one to the other of the contacts 29 and 30 upon completion of a revolution of said disk.
  • the motor 115,21 coiled s rin 33 is mounted upon the stub shaft 34: of said disk so as 'to bear upon the latter and exercise a braking effect.
  • a normally open switch 35 controls ;a shunt 36 around the switch 26, and is itself controlled by electro-magnet 37 being cl'osed when said magnet is energized.
  • the circuit '38 of said magnet includes a hand 39 which rotates at a constant gradual rate, as for example, one revolution per minute, Said hand may conveniently be driven by one of the spindles (not shown) of the clock 8. "Once in each revolution said hand encounters a contact 40, also in the circuit 38, so that the electro-magnet '37 is energized jdjuri'ng the brief period of contact of said hand with said contact.
  • the switch '35 is closed and the motor is started.
  • the disk 21 will have received at least one rotative impulse, causing it to disengage the switch 26 and permit the latter to close.
  • the switch 26 Will continue to close the motor circuit subsequent to opening of the switch 35, and will maintain said circuit closed until the completion of ten revclutionsof the roller 2 and disk 19, and a resultant single revolution of the disk 23, whereupon the pin 31 again opens the switch
  • the proportioning of the size of the signs on the web 3 to the diameter or the roller 2 is such that the travel of the Webfi accomanyingten revolution of the roller is just sufiicie'nt to frame a dilferent sign in the opening 4.
  • the number of convolutio'ns' disk 23 effects the display or a difierent sign and there are seven signs on the web,
  • a changeable sign the combination with a pair of rolers and a web mounted thereon carrying a plurality of signs, or a frame provided with an opening across which said web travels, said opening being proportioned for the display of "said signs individually, a motor havinga drivingconnection with one of said rollers, a normally open switch controlling the motor circuit, a shunt around said switch,,a sec ond normally open switch in the shunt circuit, means for closing said second switch to initially energize the motor, and mechanism driven by the motor initially efiecting closing of the first-mentioned switch and opening the same and holding it open upon a travel of the web suflicient to display a diflerent sign through said opening.
  • a changeable sign the combination with a pair of rollers and a web extending between said rollers "to alternately wind from one to the other, said web carrying a plurality of signs, of a frame provided with an opening across which said web travels, said opening being proportioned for the dis play of said signs individually, a motor having driving connection with said rollers, allowing a speed differential therebetween, a normally closed reversing switch controlling said motor, a normally open switchfor the motor in series with said reversing switch,
  • a step-by-sltepmechanism driven by the motor and having a cycle of operation initlially efleoting closing of said normally open switch and finally opening the same, said mechanism completing its cycle during travel of the web sufficient to effect a change of signs, means for initially energizing the motor at regular time intervals for periodssufiicient to insure closing ofthe normally open switch, and a step-by-step mechanism driven by the motor in a relatively protracted cycle throwing over the reversing switch upon completion of said cycle, such completion being effected in substantial unison with completion of the desired travel of the web in either direction.

Description

May 8, 1923.
H. w. CAIRN CHANGEABLE SIGN DEVICE Filed June 15,
'1920 s Sheets-Sheet 1 May 8,. 1923.
H. W. CAIRNS CHANGEABLE SIGN DEVICE Filed June 15, 1920 gnucnto z Am r/11mm 3 Sheen-Sheet 2 Patented May 8, 1923.
n rr er '1" s nanny W. CAIRNS, or DETROIT, moment.
CHANGEABLE-SIGN DEVICE.
Application filed June 15, 1929. Serial No. 389,089.
To all whom it may concern:
Be it known that I, HENRY \V'. CAIRNS, a citizen of the United States, residing at Detroit, in the county of Wayne and State 5 of Michigan, have invented a new and useful Changeable-Sign Device, of which the following is a specification. V
This invention relates to changeable sign devices and more particularly to devices for 1 successively exhibiting signs carried by a v web mounted on suitable rollers.
It is an object of the invention to provide an automatic mechanism driven by the motor which actuates the rollers for starting said 1 motor at substantially uniform time intervals, and for stopping the same after a travel of the web suflicient to register a different sign with the display opening of the device. 4
A further object is to automatically reverse the motor by means of a suitable stepby-step mechanism upon a travel of the web in either direction suflicient tocomplete d1splay of all of the signs. Among the distinctive features of the 1nvention are the means employed to efiect illumination of the sign, and the provision for Variation in the speed of the rollers relative to the driving means therefor to compensate for the varying driving efl'ectpf the web upon the reel from which 1t is belng unwound.
The aforesaid objects are attained by the construction hereinafter described and illustrated in ,the accompanying drawings, wherein,
Fig. 1 tion. v V
Fig. 2 is a side view of the same in partial section. I I Fig. 3 is a detail in horizontal cross-sec.-
tion of one of the uprights of the frame, the section being taken on line 3 3 of Flg. 1.
Fig. 4c is a similar view of the lower cross member of the frame, the plane of section being indicated at 44 in Fig. 1.
Fig. 5 is a rear view of the device upon a somewhat larger scale than that of Fig. 1, certain parts being broken away to more clearly show portions of the operating mechanism. r
Fig. 6 is a detail view of a step-by-step mechanism for controlling the motor circuits, including a diagram of said circuits 55 Fig. 7 is another view of said mechanism 1 transverse to Fig. 6.
is a front elevation of the inven- Fig. 1'." The uprights of the frame 5 are preferably angle bar tresses (see Fig. 2) and these are rigidly connected at top and bottom by angle bars 6. There'is also extended between the upper ends of said trusses an ornamental vertical plate 7 carrying a clock 8, the dial of which is framed in "said plate, as seen in Fig. 1. A pilaster effect is given to each of the uprights of the frame by pressed sheet metal members 9, which serve also to conceal electric lamps 10 and to reflect the light thereof upon the displayed sign to illuminate the same. Lamps 11 are also provided above and below the sign to illuminate the same, and sheet metal members 12 serve to conceal said lamps to re-' fleet the light thereof upon the sign and to add to the ornamental appearance of the frame.
The rollers 1 and 2 are mounted loosely upon shafts 13 journaled'in the frame and are concealed behind the memberslQ. A driving connection from each of said shafts to the corresponding roller is established by a coiled spring 141 recessed within one end portion of the roller, the connections of said springs to the rollers and shafts being reverse so that the tension on one'of said springs is being relieved while that of the other is increased, when both shafts are similarly driven. Amotor 15 drives the lower shaft 13 through a speed reduction gearing 16, and the upper shaft 13 is driven from the lower through an endless chain 17, the
speed and direction of travel of the two shafts being the same. It is preferred to arrange the motor 15 and drive gearing 16 at one side of the frame 5, and at the other side thereof to arrange within a casing 18 an automatic motor control mechanism which will now be described'. Thus,'f upon an end of thelower roller 2 there is mounted fast a disk 19 from which a pin 20 projects radially. An adjacent dislr21 carries upon one of its side faces .a plurality" of equally spaced pins 22, one of which is engaged by the pin 20 of the disk 19 for each revolution of the latter, so as to impart to said disk 21 a gradual step-by-step rota tion. Adjacent the disk 21 is mounted a third disk 23 which has imparted thereto from the disk 21 a still more gradual stepby-step rotation. This" is effected by providing upon a side face of said disk 23 a plurality er equally spaced ins 24 equal in number to the signs on the web 3, which pins are successively engageable by a r'adially projecting pin 25 upon the disk 21. Asshown, there are ten pins 22 upon the dis1' 21, and seven ins 24 upon the disk 23. Thiis' ten revolutions of the initial driving disk 19 are required to eliect a single turn of the disk 21, and seven turns of the latter are necessary to accomplish a revolution of the disk 23, seven being also the number of signs carried by the web 3. The disk 21 forms acontrol means for a switch 26 in the meter circuit 27 energized from the leads 27 and 27, and the disk 23 is adapted to control a reversing switch in series with the switch 26, and comprising pivotal switch arm 23 and a pair of contacts 29 and 30, a forward or reverse drive of the motor being effected according as said arm engages the contact 29 or 30. a A radial pin 31 on the disk 21 is engageable with the switch 26 to open the same as said pin reaches its uppermost position, and a pair or radial pins 32 aujaeently mounted upon the dial 23 are, one or the other, engageable with the switch arm 28, according to the direction in which said disk is being driven, to throw said switch arm from one to the other of the contacts 29 and 30 upon completion of a revolution of said disk. To insure immediate stopping of the disk 21 when the pin 31 opens the switch 26 and thus deener'gi'zes the motor 115,21 coiled s rin 33 is mounted upon the stub shaft 34: of said disk so as 'to bear upon the latter and exercise a braking effect. Thus, after the disk 21 has completed revolution andnpened the switch 26, it remains a position to hold said switch open until the motor 15 has been started by the means which will now be described. A normally open switch 35 controls ;a shunt 36 around the switch 26, and is itself controlled by electro-magnet 37 being cl'osed when said magnet is energized. The circuit '38 of said magnet includes a hand 39 which rotates at a constant gradual rate, as for example, one revolution per minute, Said hand may conveniently be driven by one of the spindles (not shown) of the clock 8. "Once in each revolution said hand encounters a contact 40, also in the circuit 38, so that the electro-magnet '37 is energized jdjuri'ng the brief period of contact of said hand with said contact. During this brief period, therefore, the switch '35 is closed and the motor is started. Before de-energization of the magnet 37, and consequent opening of the switch 35, the disk 21 will have received at least one rotative impulse, causing it to disengage the switch 26 and permit the latter to close. Thus the switch 26 Will continue to close the motor circuit subsequent to opening of the switch 35, and will maintain said circuit closed until the completion of ten revclutionsof the roller 2 and disk 19, and a resultant single revolution of the disk 23, whereupon the pin 31 again opens the switch The proportioning of the size of the signs on the web 3 to the diameter or the roller 2 is such that the travel of the Webfi accomanyingten revolution of the roller is just sufiicie'nt to frame a dilferent sign in the opening 4. As the number of convolutio'ns' disk 23 effects the display or a difierent sign and there are seven signs on the web,
they will be all displayed during the p H riod requiredto efi'ect one revolution "of the disk 23. In completing its revolution said disk acts upon the switch arm 28, through one of the pins 32, and shifts the same from one to the other of the contacts 29 and 30, according to the direction in which said disk is driven. Thus after a step-by-step travel of the web 3 in one di= recti'on sufficient to display all of the signs thereupon, an automatic reversal of the moto'r 15 is eliec-te'd so that a ste-p-by-step travel ofthe web in a reverse direction takes place.
WVhile there has been shown and described an embodiment of the invention particularly adapted for large outdoor displays, it is of course to be understood that the same inech anism might be employed for actuating a smaller device.
I claim is:
1. In a changeable sign, the combination with a pair of rolers and a web mounted thereon carrying a plurality of signs, or a frame provided with an opening across which said web travels, said opening being proportioned for the display of "said signs individually, a motor havinga drivingconnection with one of said rollers, a normally open switch controlling the motor circuit, a shunt around said switch,,a sec ond normally open switch in the shunt circuit, means for closing said second switch to initially energize the motor, and mechanism driven by the motor initially efiecting closing of the first-mentioned switch and opening the same and holding it open upon a travel of the web suflicient to display a diflerent sign through said opening.
2. In a changeable sign, the combination with a pair of rollers and a web extending between said rollers "to alternately wind from one to the other, said web carrying a plurality of signs, of a frame provided with an opening across which said web travels, said opening being proportioned for the dis play of said signs individually, a motor having driving connection with said rollers, allowing a speed differential therebetween, a normally closed reversing switch controlling said motor, a normally open switchfor the motor in series with said reversing switch,
a step-by-sltepmechanism driven by the motor and having a cycle of operation initlially efleoting closing of said normally open switch and finally opening the same, said mechanism completing its cycle during travel of the web sufficient to effect a change of signs, means for initially energizing the motor at regular time intervals for periodssufiicient to insure closing ofthe normally open switch, and a step-by-step mechanism driven by the motor in a relatively protracted cycle throwing over the reversing switch upon completion of said cycle, such completion being effected in substantial unison with completion of the desired travel of the web in either direction. In testimony whereof Isignthis specification.
HENRY W. CAIRNS.
US389089A 1920-06-15 1920-06-15 Changeable-sign device Expired - Lifetime US1454622A (en)

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US20040209672A1 (en) * 2002-08-21 2004-10-21 Kazuo Okada Gaming machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040209672A1 (en) * 2002-08-21 2004-10-21 Kazuo Okada Gaming machine

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